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17: Projective Model

Last updated

Sep 5, 2021
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- 16.5: Central projection
- 17.1: Special bijection on the h-plane

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The projective model is another model of hyperbolic plane discovered by Beltrami; it is often called Klein model. The projective and conformal models are saying exactly the same thing but in two different languages. Some problems in hyperbolic geometry admit simpler proof using the projective model and others have simpler proof in the conformal model. Therefore, it is worth knowing both.

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